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AS4

University of Southern California

AS4 is University of Southern California (isi.edu). It announces 65,536 IPv4 addresses in 43 prefixes, and 9 IPv6 prefixes.

United States· ARIN· allocated 1984-02-22· education

65,536
IPv4 addresses announced
43
IPv4 prefixes
9
IPv6 prefixes
2.00%
of its routes RPKI-valid
65,024
of its IPv4 geolocated
1
country

Where its space is

The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.

  1. United States65,024 · 100.00%

Registry record

Its ASN Whois record, as the registry publishes it.

handle
ISI-AS
name
University of Southern California
org
USC-32-Z
org name
University of Southern California
org address
Information Sciences Institute, 4676 Admiralty Way, Suite 1001, Marina del Rey, CA, 90292
org city
Marina del Rey
org country
US
country
US
source
arin
created
1984-02-22
updated
2023-09-29
abuse name
IPC Computing Services
abuse email
action@isi.edu
abuse phone
+1-310-448-8289
abuse kind
role
abuse city
Marina del Rey
abuse country
US
admin name
IPC Computing Services
admin email
action@isi.edu
admin phone
+1-310-448-8289
admin kind
role
admin city
Marina del Rey
admin country
US
tech name
IPC Computing Services
tech email
action@isi.edu
tech phone
+1-310-448-8289
tech kind
role
tech city
Marina del Rey
tech country
US

What the databases see

Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.

IPv4 prefixes

Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.

43 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
128.9.0.0/20United Statesnot found192026-10-02
128.9.16.0/24United Statesnot found192026-10-02
128.9.17.0/24United Statesnot found192026-10-02
128.9.18.0/24United Statesnot found192026-10-02
128.9.19.0/24United Statesnot found192026-10-02
128.9.26.0/24United Statesnot found192026-10-02
128.9.28.0/23United Statesnot found192026-10-02
128.9.30.0/24United Statesnot found192026-10-02
128.9.31.0/24United Statesnot found172026-10-02
128.9.32.0/20United Statesnot found192026-10-02
128.9.34.0/24United Statesnot found192026-10-02
128.9.35.0/24United Statesnot found192026-10-02
128.9.36.0/24United Statesnot found192026-10-02
128.9.37.0/24United Statesnot found192026-10-02
128.9.38.0/24United Statesnot found192026-10-02
128.9.40.0/24United Statesnot found192026-10-02
128.9.43.0/24United Statesnot found192026-10-02
128.9.44.0/24United Statesnot found192026-10-02
128.9.46.0/24United Statesnot found192026-10-02
128.9.47.0/24United Statesnot found192026-10-02
128.9.48.0/20United Statesnot found192026-10-02
128.9.64.0/20United Statesnot found192026-10-02
128.9.80.0/20United Statesnot found192026-10-02
128.9.96.0/20United Statesnot found192026-10-02
128.9.112.0/20United Statesnot found192026-10-02
128.9.113.0/24United Statesnot found192026-10-02
128.9.117.0/24United Statesnot found192026-10-02
128.9.122.0/24United Statesnot found192026-10-02
128.9.123.0/24United Statesnot found192026-10-02
128.9.127.0/24United Statesnot found192026-10-02
128.9.128.0/20United Statesnot found192026-10-02
128.9.144.0/20United Statesnot found192026-10-02
128.9.160.0/20United Statesnot found192026-10-02
128.9.176.0/20United Statesnot found192026-10-02
128.9.192.0/18United Statesnot found192026-10-02
165.140.12.0/24also AS400215United Statesnot found22026-10-02
165.140.14.0/24also AS400215United Statesnot found22026-10-02
170.79.218.0/23also AS266306—not found62026-10-02
198.32.16.0/24United Statesnot found192026-10-02
206.117.6.0/24United Statesnot found192026-10-02
206.117.27.0/24United Statesnot found192026-10-02
206.117.31.0/24United Statesnot found192026-10-02
206.117.37.0/24United Statesnot found192026-10-02

IPv6 prefixes

Every IPv6 prefix BGP Route saw it announce.

9 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
2001:500:202::/48United Statesvalid202026-10-02
2001:1878:401::/48United Statesnot found82026-10-02
2001:1878:402::/48United Statesnot found82026-10-02
2001:1878:403::/48United Statesnot found82026-10-02
2001:1878:404::/48United Statesnot found82026-10-02
2606:d5c0::/32United Statesnot found202026-10-02
2606:d5c0::/48United Statesnot found42026-10-02
2804:3edc::/32also AS266625—not found132026-10-02
2c0f:fdd0::/32also AS37358South Africanot found42026-10-02
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